With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
nmisFtpActiveSessions
nmis Ftp Active Sessions
This attribute indicates the number of simultaneous sessions currently active under the manager. Note that there may be fewer Session components than what is shown here, since an active session could be in the midst of logging in and may not yet be fully up.
Back to Nortel-Magellan-Passport-MgmtInterfacesMIB MIB page.
IPHost Network monitor allows you to monitor nmisFtpActiveSessions on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel switches right now.